Archive for category Games

Quick ‘n dirty anagrammer using the Internet Anagram Server

I was bored one day and noticed that the an(6) program wasn’t in Red Hat’s repos. So I wrote a Perl script to talk to the Internet Anagram Server’s HTTP interface:

#!/usr/bin/perl
use strict;
use warnings;

use HTTP::Client;
use URI::Escape;

my $client   = HTTP::Client->new();
my $string   = uri_escape(join(" ", @ARGV));
my $document = $client->get("http://www.wordsmith.org/anagram/anagram.cgi?anagram=" . $string . "&t=1000&a=n");
my $start    = index($document, "Anagrams for: $string</h3>");
my $end      = index($document, '<bottomlinks>');
my $relevant = substr($document, $start, ($end - $start));
$relevant    =~ s/<.*>//g;
print $relevant;
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Play-by-post gaming setup

Fast Requirements:

  • Grid or octagon overlay of custom image to display character positions
  • LoS and rage calculations
  • Real time OR delayed response posting
  • Round timing
  • GM-fudgable die rolls

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Minecraft Server is coming back

UPDATE 20120806 0746 hours:  Since some folks have asked, here’s the init script I’m using to control the minecraft server.  It runs on CentOS (royalty-free rebranding of Red Hat Enterprise Linux):

#!/bin/bash
# /etc/init.d/minecraft
# version 0.3.7 2012-03-06 (YYYY-MM-DD)

### BEGIN INIT INFO
# Provides:   minecraft
# Required-Start: $local_fs $remote_fs
# Required-Stop:  $local_fs $remote_fs
# Should-Start:   $network
# Should-Stop:    $network
# Default-Start:  2 3 4 5
# Default-Stop:   0 1 6
# Short-Description:    Minecraft server
# Description:    Starts the minecraft server
### END INIT INFO

#Settings
SERVICE='minecraft_server.jar'
OPTIONS='nogui'
USERNAME='miner'
WORLD='world'
MCPATH='/opt/minecraft'
BACKUPPATH='/media/archive/minecraft.backup'
CPU_COUNT=1
INVOCATION="java -Xmx1024M -Xms1024M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=$CPU_COUNT -XX:+AggressiveOpts -jar $SERVICE $OPTIONS"

ME=`whoami`
as_user() {
  if [ $ME == $USERNAME ] ; then
    bash -c "$1"
  else
    su - $USERNAME -c "$1"
  fi
}

mc_start() {
  if  pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "$SERVICE is already running!"
  else
    echo "Starting $SERVICE..."
    cd $MCPATH
    as_user "cd $MCPATH && screen -dmS minecraft $INVOCATION"
    sleep 7
    if pgrep -u $USERNAME -f $SERVICE > /dev/null
    then
      echo "$SERVICE is now running."
    else
      echo "Error! Could not start $SERVICE!"
    fi
  fi
}

mc_saveoff() {
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "$SERVICE is running... suspending saves"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly...\"\015'"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-off\"\015'"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
    sync
    sleep 10
  else
    echo "$SERVICE is not running. Not suspending saves."
  fi
}

mc_saveon() {
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "$SERVICE is running... re-enabling saves"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-on\"\015'"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
  else
    echo "$SERVICE is not running. Not resuming saves."
  fi
}

mc_stop() {
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "Stopping $SERVICE"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"say SERVER SHUTTING DOWN IN 10 SECONDS. Saving map...\"\015'"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"save-all\"\015'"
    sleep 10
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"stop\"\015'"
    sleep 7
  else
    echo "$SERVICE was not running."
  fi
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "Error! $SERVICE could not be stopped."
  else
    echo "$SERVICE is stopped."
  fi
}

mc_update() {
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    echo "$SERVICE is running! Will not start update."
  else
    MC_SERVER_URL=http://s3.amazonaws.com/MinecraftDownload/launcher/minecraft_server.jar?v=`date | sed "s/[^a-zA-Z0-9]/_/g"`
    as_user "cd $MCPATH && wget -q -O $MCPATH/minecraft_server.jar.update $MC_SERVER_URL"
    if [ -f $MCPATH/minecraft_server.jar.update ]
    then
      if `diff $MCPATH/$SERVICE $MCPATH/minecraft_server.jar.update >/dev/null`
      then
        echo "You are already running the latest version of $SERVICE."
      else
        as_user "mv $MCPATH/minecraft_server.jar.update $MCPATH/$SERVICE"
        echo "Minecraft successfully updated."
      fi
    else
      echo "Minecraft update could not be downloaded."
    fi
  fi
}

mc_backup() {
   mc_saveoff

   NOW=`date "+%Y-%m-%d_%Hh%M"`
   BACKUP_FILE="$BACKUPPATH/${WORLD}_${NOW}.tar"
   echo "Backing up minecraft world..."
   #as_user "cd $MCPATH && cp -r $WORLD $BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`"
   as_user "tar -C \"$MCPATH\" -cf \"$BACKUP_FILE\" $WORLD"

   echo "Backing up $SERVICE"
   as_user "tar -C \"$MCPATH\" -rf \"$BACKUP_FILE\" $SERVICE"
   #as_user "cp \"$MCPATH/$SERVICE\" \"$BACKUPPATH/minecraft_server_${NOW}.jar\""

   mc_saveon

   echo "Compressing backup..."
   as_user "gzip -f \"$BACKUP_FILE\""
   echo "Done."
}

mc_command() {
  command="$1";
  if pgrep -u $USERNAME -f $SERVICE > /dev/null
  then
    pre_log_len=`wc -l "$MCPATH/server.log" | awk '{print $1}'`
    echo "$SERVICE is running... executing command"
    as_user "screen -p 0 -S minecraft -X eval 'stuff \"$command\"\015'"
    sleep .1 # assumes that the command will run and print to the log file in less than .1 seconds
    # print output
    tail -n $[`wc -l "$MCPATH/server.log" | awk '{print $1}'`-$pre_log_len] "$MCPATH/server.log"
  fi
}

#Start-Stop here
case "$1" in
  start)
    mc_start
    ;;
  stop)
    mc_stop
    ;;
  restart)
    mc_stop
    mc_start
    ;;
  update)
    mc_stop
    mc_backup
    mc_update
    mc_start
    ;;
  backup)
    mc_backup
    ;;
  status)
    if pgrep -u $USERNAME -f $SERVICE > /dev/null
    then
      echo "$SERVICE is running."
    else
      echo "$SERVICE is not running."
    fi
    ;;
  command)
    if [ $# -gt 1 ]; then
      shift
      mc_command "$*"
    else
      echo "Must specify server command (try 'help'?)"
    fi
    ;;

  *)
  echo "Usage: $0 {start|stop|update|backup|status|restart|command \"server command\"}"
  exit 1
  ;;
esac

exit 0

[[Category:Server]]

And then this is the crontab entry to run the backup every 30 minutes:

0,30 * * * * mount /media/archive && /etc/init.d/minecraft backup; umount /media/archive

UPDATE 20120703 1110 hours:  The server is open for business at IP 67.53.8.172.  I will register a DNS entry shortly.  Currently we have only Bjorn and myself whitelisted.  Post a comment to this page to add your name and tell me who you are.  ATM, only IRL friends are welcome here.

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Poll: Monsters?

Do we want to turn on monsters?  This is a yes or no question – I can’t nerf creepers.

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The Adventures of Pheege, Gnomish Engineer

WoW runs smooth as glass on my box at max settings.  Who know having a big enough PSU would make a big difference in graphics performance.

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Reboot of SavageChicken

Dear Minecraft Users:

I need to schedule a reboot of the server that hosts Minecraft.  It’s due for a kernel upgrade:

 
******************************
* A new kernel is available. *
* Please schedule a reboot.  *
******************************

Kernel release 2.6.18-274.12.1.el5.centos.plus is available in /boot.
Current release is 2.6.18-274.7.1.el5.centos.plus.

-root on SavageChicken

Please let me know if anyone objects to me scheduling a reboot for midnight tonight.  Thanks!

 

Sincerely,
Your friendly neighborhood sysadmin.

4 Comments

Minecraft Logs

Here are some anomalies from the Minecraft log files:
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More WoW Screenies

This time I’ll do them with narrative.

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WoW Screenies

I’m playing WoW again.  I figured it’d be neat to start a new character under Cataclysm.  I decided on a Retribution Paladin:

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Status

Sorry I haven’t seen much of you people lately.  I’ve been seeing a lot of someone else and it bothers me that I’ve been neglecting you awesome peoples.  We need to get a weekly game of some sort going I think.  I’d be willing to host if someone picks the game and GMs it.  I’d be up for Shadowrun, D&D, CthulhuTech, or really anything else.  Let me know!

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